User Manual
646
Rev. 1.1
2019-03-18
TLE984xQX
Microcontroller with LIN and Power Switches for Automotive Applications
LIN Transceiver
Figure 174 SFR controlled LIN Transceiver State machine
LIN Normal Mode (LNM)
In this mode it is possible to receive and transmit data with low slope, normal slope, fast slope or flash mode.
Slope Setting is locked during LIN Normal Mode to avoid destruction of Communication Process. This is
blocked by hardware.
LIN Receive-Only Mode (LROM)
In LIN Receive-Only Mode the transmitter is disabled. The receiver is active. This mode can be directly selected
by application software or is automatically set upon error detection.
LIN Sleep Mode (LSLM)
In this mode, the transmit and receive functions are disabled, the wake receiver is active. Minimum current
consumption is achieved. Wake up via LIN is possible. To disable the wake capability via LIN, within the PMU
the LIN wake can be disabled.
LIN High Voltage Input / Output (LHVIO)
This mode is dedicated for using the LIN Transceiver as high voltage input/output. In LHVIO Mode the
transceiver can be controlled by 2 SFR bits,
.RXD.
LIN MODE CONTROL
LIN Recieve-Only-
Mode
(LROM)
LIN Normal-Mode
(LNM)
LIN Sleep-Mode
(LSLM)
LSLM
→
LNM
LROM
→
LSLM
LNM
→
LROM
LNM
→
LSLM
High Voltage IO-
Mode
(LHVIO)
LHVIOM
→
LSLM
LROM
→
LNM
LSLM
→
LROM
LSLM
→
LHVIOM